From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
List of planned experiments and measurements concerning Goshawk ignition coils.
| Identifier | ExFiles\Box 45\4\ Scan096 | |
| Date | 21th November 1922 | |
| H.H. 199 (50T) (SD576 19-7-17) M/P.18805 X. 4079. EFC/T21.11.22. GOSHAWK IGNITION EXPERIMENTS. (1) Production dept. coils with longer core etc, bench and road trials. C.A.P. (2) Derby design coils as per EFC6/T17.11.22. C.A.P. (3) W.W. design coils. C.A.P. (4) Coil position over wheelcase C.A.P. (a) Uninsulated. (b) Insulated. (5) Leakage on H.T. circuit (a) 200 volts d.c. (b) 300 volts a.c. cold and hot. C.A.P. (6) Measurement of conductivity of insulating materials at various temperatures with applied high D.C. potential. F.J.A. (7) Measurement of inductivity of insulating materials at various temperatures with applied high A.C.. potential. F.J.A. (8) Measurement of dielectric hysteresis of insulating materials at various temperatures with applied high A.C. potential. F.J.A. (9) Breakdown potential gradient of insulating materials at various temperatures with applied high .a.c. potential. F.J.A. | ||